20387789 is an odd 8-digits prime number following 20387788
and preceding 20387790 . In scientific notation, it is written as 2.0387789 × 10^7.
The sum of its digits is 44. It has a total of 1 prime factors and 2 positive divisors.
There are 20387788 positive integers (up to 20387789) that are relatively prime to 20387789.
20387789 has 2 divisors, whose sum is 20387790
The reverse of 20387789 is 98778302
Previous prime number is 1
Is Prime? yes Number parity odd Number length 8 Sum of Digits 44 Digital Root 8
Name
twenty million three hundred eighty-seven thousand seven hundred eighty-nine
Scientific notation
2.0387789 × 10^7
Engineering notation
2.0387789 × 10^6
Prime Factorization
20387789
Composite number
ω Distinct Factors
1 Total number of distinct prime factors
Ω Total Factors
1 Total number of prime factors
rad Radical
20387789 Product of the distinct prime numbers
The prime factorization of 20387789 is 20387789.
Since it has a total of 1 prime factors.
10 , 6 , 58 , 11 , 672 , 721 , 8216 , 9135 , 52907 , 42097 , 729638 , 259924 , 8386261 , 3570186 , 22646937 , 73416795 , 662352802 , 26039295 , 9228376684 , 1371945350
n×2
40775578
n×3
61163367
n×4
81551156
n×5
101938945
n÷2
10193894.5
n÷3
6795929.6666667
n÷3
5096947.25
n÷5
4077557.8
n2
415661940308521
n3
8.4744279343407E+21
n4
1.7277484862104E+29
n5
3.5224971581928E+36
2 √n4515.2839334864
3 √n273.18491231586
4 √n67.19586247297
5 √n28.965032895109
2 divisors
τ Total Divisors
2 Total number of the positive divisors of n
σ Sum of Divisors
20387790 Sum of all the positive divisors of n
s Aliquot Sum
1 Sum of the proper positive divisors of n
A Arithmetic Mean
10193895 Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G Geometric Mean
4515.2840442214 Returns the nth root of the product of n divisors
H Harmonic Mean
1.9999999019021 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20387789 can be divided by 2 positive divisors.
The sum of these divisors (counting 20387789) is 20387790, the average is 10193895.
Base
System
Value
2
Binary
1001101110001011111001101
3
Ternary
1102100210210022
4
Quaternary
1031301133031
5
Quinary
20204402124
6
Senary
2004551525
8
Octal
115613715
10
Decimal
20387789
12
Duodecimal
69b25a5
16
Hexadecimal
13717cd
20
Vigesimal
678999
36
Base36
c4zbh
md5
58d5e33c69655e45c967a0f137dbe6a1
sha1
1c5e38b418ed8258e87f2cfea7fe8beab349d28c
sha256
ea90bfbd4faa35fe84d10d59b8fe399b2ec483eef18611e709582c16585d595f
sha512
0cff12e227d00d686fc635b6d720237ae1bef40a72ad6adf85bf2db036a80a225b91d659cb050a44c07fa9824c59b6d68386c5050317b299f19932ebc8bef186
ripemd-160
97aa916f8b3c2a44d0ce555c774a7efc52c4b3f5
Diameter
40775578
Circumference
128100256.29068
Area
1.3058404980501E+15
Volume
3.5497600722535E+22
Surface area
5.2233619922005E+15
Circumference
128100256.29068
Perimeter
81551156
Area
415661940308521
Diagonal
28832687.710601
Surface area
2493971641851126
Volume
8.4744279343407E+21
Space diagonal
35312686.401994
Perimeter
61163367
Area
1.7998689984676E+14
Altitude
17656343.200997
Surface area
1.7998689984676E+14
Volume
9.9872090984151E+20
Height
9610895.9035337